src/vmcore/options.c

   1 /* src/vmcore/options.c - contains global options
   2
   3    Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
   4    C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
   5    E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
   6    J. Wenninger, Institut f. Computersprachen - TU Wien
   7
   8    This file is part of CACAO.
   9
  10    This program is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation; either version 2, or (at
  13    your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful, but
  16    WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  23    02110-1301, USA.
  24
  25 */
  26
  27
  28 #include "config.h"
  29
  30 #include <errno.h>
  31 #include <stdint.h>
  32 #include <stdio.h>
  33 #include <stdlib.h>
  34
  35 #if defined(HAVE_STRING_H)
  36 # include <string.h>
  37 #endif
  38
  39 #include <limits.h>
  40
  41 #include "mm/memory.h"
  42
  43 #include "native/jni.h"
  44
  45 #include "vm/vm.h"
  46
  47 #include "vmcore/options.h"
  48
  49
  50 /* command line option ********************************************************/
  51
  52 s4    opt_index = 0;            /* index of processed arguments               */
  53 char *opt_arg;                  /* this one exports the option argument       */
  54
  55 bool opt_foo = false;           /* option for development                     */
  56
  57 bool opt_jar = false;
  58
  59 #if defined(ENABLE_JIT)
  60 bool opt_jit = true;            /* JIT mode execution (default)               */
  61 bool opt_intrp = false;         /* interpreter mode execution                 */
  62 #else
  63 bool opt_jit = false;           /* JIT mode execution                         */
  64 bool opt_intrp = true;          /* interpreter mode execution (default)       */
  65 #endif
  66
  67 bool opt_run = true;
  68
  69 s4   opt_heapmaxsize   = 0;     /* maximum heap size                          */
  70 s4   opt_heapstartsize = 0;     /* initial heap size                          */
  71 s4   opt_stacksize     = 0;     /* thread stack size                          */
  72
  73 bool opt_verbose = false;
  74 bool opt_debugcolor = false;    /* use ANSI terminal sequences                */
  75 bool compileall = false;
  76
  77 bool loadverbose = false;
  78 bool initverbose = false;
  79
  80 bool opt_verboseclass     = false;
  81 bool opt_verbosegc        = false;
  82 bool opt_verbosejni       = false;
  83 bool opt_verbosecall      = false;      /* trace all method invocation        */
  84
  85 bool showmethods = false;
  86 bool showconstantpool = false;
  87 bool showutf = false;
  88
  89 char *opt_method = NULL;
  90 char *opt_signature = NULL;
  91
  92 bool compileverbose =  false;           /* trace compiler actions             */
  93 bool showstack = false;
  94
  95 bool opt_showdisassemble    = false;    /* generate disassembler listing      */
  96 bool opt_shownops           = false;
  97 bool opt_showddatasegment   = false;    /* generate data segment listing      */
  98 bool opt_showintermediate   = false;    /* generate intermediate code listing */
  99
 100 bool checkbounds = true;       /* check array bounds                         */
 101 bool opt_noieee = false;       /* don't implement ieee compliant floats      */
 102 bool checksync = true;         /* do synchronization                         */
 103 #if defined(ENABLE_LOOP)
 104 bool opt_loops = false;        /* optimize array accesses in loops           */
 105 #endif
 106
 107 bool makeinitializations = true;
 108
 109 #if defined(ENABLE_STATISTICS)
 110 bool opt_stat    = false;
 111 bool opt_getloadingtime = false;   /* to measure the runtime                 */
 112 bool opt_getcompilingtime = false; /* compute compile time                   */
 113 #endif
 114 #if defined(ENABLE_VERIFIER)
 115 bool opt_verify  = true;       /* true if classfiles should be verified      */
 116 #endif
 117
 118 #if defined(ENABLE_PROFILING)
 119 bool opt_prof    = false;
 120 bool opt_prof_bb = false;
 121 #endif
 122
 123
 124 /* inlining options ***********************************************************/
 125
 126 #if defined(ENABLE_INLINING)
 127 bool opt_inlining = false;
 128 #if defined(ENABLE_INLINING_DEBUG) || !defined(NDEBUG)
 129 s4 opt_inline_debug_min_size = 0;
 130 s4 opt_inline_debug_max_size = INT_MAX;
 131 s4 opt_inline_debug_end_counter = INT_MAX;
 132 bool opt_inline_debug_all = false;
 133 #endif /* defined(ENABLE_INLINING_DEBUG) || !defined(NDEBUG) */
 134 #if !defined(NDEBUG)
 135 bool opt_inline_debug_log = false;
 136 #endif /* !defined(NDEBUG) */
 137 #endif /* defined(ENABLE_INLINING) */
 138
 139
 140 /* optimization options *******************************************************/
 141
 142 #if defined(ENABLE_IFCONV)
 143 bool opt_ifconv = false;
 144 #endif
 145
 146 #if defined(ENABLE_LSRA) || defined(ENABLE_SSA)
 147 bool opt_lsra = false;
 148 #endif
 149
 150
 151 /* interpreter options ********************************************************/
 152
 153 #if defined(ENABLE_INTRP)
 154 bool opt_no_dynamic = false;            /* suppress dynamic superinstructions */
 155 bool opt_no_replication = false;        /* don't use replication in intrp     */
 156 bool opt_no_quicksuper = false;         /* instructions for quickening cannot be
 157                                                                                    part of dynamic superinstructions */
 158
 159 s4   opt_static_supers = 0x7fffffff;
 160 bool vm_debug = false;          /* XXX this should be called `opt_trace'      */
 161 #endif
 162
 163 #if defined(ENABLE_DEBUG_FILTER)
 164 const char *opt_filter_verbosecall_include = 0;
 165 const char *opt_filter_verbosecall_exclude = 0;
 166 const char *opt_filter_show_method = 0;
 167 #endif
 168
 169
 170 /* -XX options ****************************************************************/
 171
 172 /* NOTE: For better readability keep these alpha-sorted. */
 173
 174 int      opt_DebugExceptions           = 0;
 175 int      opt_DebugLocks                = 0;
 176 int      opt_DebugPackage              = 0;
 177 int      opt_DebugPatcher              = 0;
 178 int      opt_DebugProperties           = 0;
 179 int32_t  opt_DebugStackFrameInfo       = 0;
 180 int      opt_DebugStackTrace           = 0;
 181 int      opt_DebugThreads              = 0;
 182 #if defined(ENABLE_DISASSEMBLER)
 183 int      opt_DisassembleStubs          = 0;
 184 #endif
 185 #if defined(ENABLE_GC_CACAO)
 186 int32_t  opt_GCDebugRootSet            = 0;
 187 int32_t  opt_GCStress                  = 0;
 188 #endif
 189 int32_t  opt_MaxPermSize               = 0;
 190 int32_t  opt_PermSize                  = 0;
 191 int      opt_PrintConfig               = 0;
 192 int32_t  opt_ProfileGCMemoryUsage      = 0;
 193 int32_t  opt_ProfileMemoryUsage        = 0;
 194 FILE    *opt_ProfileMemoryUsageGNUPlot = NULL;
 195 #if defined(ENABLE_REPLACEMENT)
 196 int      opt_TestReplacement           = 0;
 197 #endif
 198 int32_t  opt_ThreadStackSize           = 0;
 199 int      opt_TraceCompilerCalls        = 0;
 200 int32_t  opt_TraceExceptions           = 0;
 201 int32_t  opt_TraceJavaCalls            = 0;
 202 int32_t  opt_TraceJNICalls             = 0;
 203 int32_t  opt_TraceJVMCalls             = 0;
 204 int32_t  opt_TraceLinkClass            = 0;
 205 #if defined(ENABLE_REPLACEMENT)
 206 int32_t  opt_TraceReplacement          = 0;
 207 #endif
 208
 209
 210 enum {
 211         OPT_TYPE_BOOLEAN,
 212         OPT_TYPE_VALUE
 213 };
 214
 215 enum {
 216         OPT_DebugExceptions,
 217         OPT_DebugLocks,
 218         OPT_DebugPackage,
 219         OPT_DebugPatcher,
 220         OPT_DebugProperties,
 221         OPT_DebugStackFrameInfo,
 222         OPT_DebugStackTrace,
 223         OPT_DebugThreads,
 224         OPT_DisassembleStubs,
 225         OPT_GCDebugRootSet,
 226         OPT_GCStress,
 227         OPT_MaxPermSize,
 228         OPT_PermSize,
 229         OPT_PrintConfig,
 230         OPT_ProfileGCMemoryUsage,
 231         OPT_ProfileMemoryUsage,
 232         OPT_ProfileMemoryUsageGNUPlot,
 233         OPT_TestReplacement,
 234         OPT_ThreadStackSize,
 235         OPT_TraceCompilerCalls,
 236         OPT_TraceExceptions,
 237         OPT_TraceJavaCalls,
 238         OPT_TraceJNICalls,
 239         OPT_TraceJVMCalls,
 240         OPT_TraceLinkClass,
 241         OPT_TraceReplacement
 242 };
 243
 244
 245 option_t options_XX[] = {
 246         { "DebugExceptions",           OPT_DebugExceptions,           OPT_TYPE_BOOLEAN, "debug exceptions" },
 247         { "DebugLocks",                OPT_DebugLocks,                OPT_TYPE_BOOLEAN, "print debug information for locks" },
 248         { "DebugPackage",              OPT_DebugPackage,              OPT_TYPE_BOOLEAN, "debug Java boot-packages" },
 249         { "DebugPatcher",              OPT_DebugPatcher,              OPT_TYPE_BOOLEAN, "debug JIT code patching" },
 250         { "DebugProperties",           OPT_DebugProperties,           OPT_TYPE_BOOLEAN, "print debug information for properties" },
 251         { "DebugStackFrameInfo",       OPT_DebugStackFrameInfo,       OPT_TYPE_BOOLEAN, "TODO" },
 252         { "DebugStackTrace",           OPT_DebugStackTrace,           OPT_TYPE_BOOLEAN, "debug stacktrace creation" },
 253         { "DebugThreads",              OPT_DebugThreads,              OPT_TYPE_BOOLEAN, "print debug information for threads" },
 254 #if defined(ENABLE_DISASSEMBLER)
 255         { "DisassembleStubs",          OPT_DisassembleStubs,          OPT_TYPE_BOOLEAN, "disassemble builtin and native stubs when generated" },
 256 #endif
 257 #if defined(ENABLE_GC_CACAO)
 258         { "GCDebugRootSet",            OPT_GCDebugRootSet,            OPT_TYPE_BOOLEAN, "GC: print root-set at collection" },
 259         { "GCStress",                  OPT_GCStress,                  OPT_TYPE_BOOLEAN, "GC: forced collection at every allocation" },
 260 #endif
 261         { "MaxPermSize",               OPT_MaxPermSize,               OPT_TYPE_VALUE,   "not implemented" },
 262         { "PermSize",                  OPT_PermSize,                  OPT_TYPE_VALUE,   "not implemented" },
 263         { "PrintConfig",               OPT_PrintConfig,               OPT_TYPE_BOOLEAN, "print VM configuration" },
 264         { "ProfileGCMemoryUsage",      OPT_ProfileGCMemoryUsage,      OPT_TYPE_VALUE,   "profiles GC memory usage in the given interval, <value> is in seconds (default: 5)" },
 265         { "ProfileMemoryUsage",        OPT_ProfileMemoryUsage,        OPT_TYPE_VALUE,   "TODO" },
 266         { "ProfileMemoryUsageGNUPlot", OPT_ProfileMemoryUsageGNUPlot, OPT_TYPE_VALUE,   "TODO" },
 267 #if defined(ENABLE_REPLACEMENT)
 268         { "TestReplacement"          , OPT_TestReplacement,           OPT_TYPE_BOOLEAN, "activate all replacement points during code generation" },
 269 #endif
 270         { "ThreadStackSize",           OPT_ThreadStackSize,           OPT_TYPE_VALUE,   "TODO" },
 271         { "TraceCompilerCalls",        OPT_TraceCompilerCalls,        OPT_TYPE_BOOLEAN, "trace JIT compiler calls" },
 272         { "TraceExceptions",           OPT_TraceExceptions,           OPT_TYPE_BOOLEAN, "trace Exception throwing" },
 273         { "TraceJavaCalls",            OPT_TraceJavaCalls,            OPT_TYPE_BOOLEAN, "trace Java method calls" },
 274         { "TraceJNICalls",             OPT_TraceJNICalls,             OPT_TYPE_BOOLEAN, "trace JNI method calls" },
 275         { "TraceJVMCalls",             OPT_TraceJVMCalls,             OPT_TYPE_BOOLEAN, "TODO" },
 276         { "TraceLinkClass",            OPT_TraceLinkClass,            OPT_TYPE_BOOLEAN, "trace class linking" },
 277 #if defined(ENABLE_REPLACEMENT)
 278         { "TraceReplacement",          OPT_TraceReplacement,          OPT_TYPE_VALUE,   "trace on-stack replacement with the given verbosity level (default: 1)" },
 279 #endif
 280
 281         /* end marker */
 282
 283         { NULL,                        -1,                            -1, NULL }
 284 };
 285
 286
 287 /* options_get *****************************************************************
 288
 289    DOCUMENT ME!!!
 290
 291 *******************************************************************************/
 292
 293 s4 options_get(opt_struct *opts, JavaVMInitArgs *vm_args)
 294 {
 295         char *option;
 296         s4    i;
 297
 298         if (opt_index >= vm_args->nOptions)
 299                 return OPT_DONE;
 300
 301         /* get the current option */
 302
 303         option = vm_args->options[opt_index].optionString;
 304
 305         if ((option == NULL) || (option[0] != '-'))
 306                 return OPT_DONE;
 307
 308         for (i = 0; opts[i].name; i++) {
 309                 if (!opts[i].arg) {
 310                         /* boolean option found */
 311
 312                         if (strcmp(option + 1, opts[i].name) == 0) {
 313                                 opt_index++;
 314                                 return opts[i].value;
 315                         }
 316
 317                 } else {
 318                         /* parameter option found */
 319
 320                         /* with a space between */
 321
 322                         if (strcmp(option + 1, opts[i].name) == 0) {
 323                                 opt_index++;
 324
 325                                 if (opt_index < vm_args->nOptions) {
 326
 327 #if defined(HAVE_STRDUP)
 328                                         opt_arg = strdup(vm_args->options[opt_index].optionString);
 329 #else
 330 # error !HAVE_STRDUP
 331 #endif
 332
 333                                         opt_index++;
 334                                         return opts[i].value;
 335                                 }
 336
 337                                 return OPT_ERROR;
 338
 339                         } else {
 340                                 /* parameter and option have no space between */
 341
 342                                 /* FIXME: this assumption is plain wrong, hits you if there is a
 343                                  * parameter with no argument starting with same letter as param with argument
 344                                  * but named after that one, ouch! */
 345
 346                                 size_t l = strlen(opts[i].name);
 347
 348                                 if (strlen(option + 1) > l) {
 349                                         if (memcmp(option + 1, opts[i].name, l) == 0) {
 350                                                 opt_index++;
 351
 352 #if defined(HAVE_STRDUP)
 353                                                 opt_arg = strdup(option + 1 + l);
 354 #else
 355 # error !HAVE_STRDUP
 356 #endif
 357
 358                                                 return opts[i].value;
 359                                         }
 360                                 }
 361                         }
 362                 }
 363         }
 364
 365         return OPT_ERROR;
 366 }
 367
 368
 369 /* options_xxusage *************************************************************
 370
 371    Print usage message for debugging options.
 372
 373 *******************************************************************************/
 374
 375 static void options_xxusage(void)
 376 {
 377         option_t *opt;
 378         int       length;
 379         int       i;
 380         char     *c;
 381
 382         for (opt = options_XX; opt->name != NULL; opt++) {
 383                 printf("    -XX:");
 384
 385                 switch (opt->type) {
 386                 case OPT_TYPE_BOOLEAN:
 387                         printf("+%s", opt->name);
 388                         length = strlen("    -XX:+") + strlen(opt->name);
 389                         break;
 390                 case OPT_TYPE_VALUE:
 391                         printf("%s=<value>", opt->name);
 392                         length = strlen("    -XX:") + strlen(opt->name) + strlen("=<value>");
 393                         break;
 394                 }
 395
 396                 /* Check if the help fits into one 80-column line.
 397                    Documentation starts at column 29. */
 398
 399                 if (length < (29 - 1)) {
 400                         /* Print missing spaces up to column 29. */
 401
 402                         for (i = length; i < 29; i++)
 403                                 printf(" ");
 404                 }
 405                 else {
 406                         printf("\n");
 407                         printf("                             "); /* 29 spaces */
 408                 }
 409
 410                 /* Check documentation length. */
 411
 412                 length = strlen(opt->doc);
 413
 414                 if (length < (80 - 29)) {
 415                         printf("%s", opt->doc);
 416                 }
 417                 else {
 418                         for (c = opt->doc, i = 29; *c != 0; c++, i++) {
 419                                 /* If we are at the end of the line, break it. */
 420
 421                                 if (i == 80) {
 422                                         printf("\n");
 423                                         printf("                             "); /* 29 spaces */
 424                                         i = 29;
 425                                 }
 426
 427                                 printf("%c", *c);
 428                         }
 429                 }
 430
 431                 printf("\n");
 432         }
 433
 434         /* exit with error code */
 435
 436         exit(1);
 437 }
 438
 439
 440 /* options_xx ******************************************************************
 441
 442    Handle -XX: options.
 443
 444 *******************************************************************************/
 445
 446 void options_xx(JavaVMInitArgs *vm_args)
 447 {
 448         const char *name;
 449         const char *start;
 450         char       *end;
 451         int         length;
 452         int         enable;
 453         char       *value;
 454         option_t   *opt;
 455         char       *filename;
 456         FILE       *file;
 457         int         i;
 458
 459         /* Iterate over all passed options. */
 460
 461         for (i = 0; i < vm_args->nOptions; i++) {
 462                 /* Get the current option. */
 463
 464                 name = vm_args->options[i].optionString;
 465
 466                 /* Check for help (-XX). */
 467
 468                 if (strcmp(name, "-XX") == 0)
 469                         options_xxusage();
 470
 471                 /* Check if the option start with -XX. */
 472
 473                 start = strstr(name, "-XX:");
 474
 475                 if ((start == NULL) || (start != name))
 476                         continue;
 477
 478                 /* Check if the option is a boolean option. */
 479
 480                 if (name[4] == '+') {
 481                         start  = name + 4 + 1;
 482                         enable = 1;
 483                 }
 484                 else if (name[4] == '-') {
 485                         start  = name + 4 + 1;
 486                         enable = 0;
 487                 }
 488                 else {
 489                         start  = name + 4;
 490                         enable = -1;
 491                 }
 492
 493                 /* Search for a '=' in the option name and get the option name
 494                    length and the value of the option. */
 495
 496                 end = strchr(start, '=');
 497
 498                 if (end == NULL) {
 499                         length = strlen(start);
 500                         value  = NULL;
 501                 }
 502                 else {
 503                         length = end - start;
 504                         value  = end + 1;
 505                 }
 506
 507                 /* Search the option in the option array. */
 508
 509                 for (opt = options_XX; opt->name != NULL; opt++) {
 510                         if (strncmp(opt->name, start, length) == 0) {
 511                                 /* Check if the options passed fits to the type. */
 512
 513                                 switch (opt->type) {
 514                                 case OPT_TYPE_BOOLEAN:
 515                                         if ((enable == -1) || (value != NULL))
 516                                                 options_xxusage();
 517                                         break;
 518                                 case OPT_TYPE_VALUE:
 519                                         if ((enable != -1) || (value == NULL))
 520                                                 options_xxusage();
 521                                         break;
 522                                 default:
 523                                         vm_abort("options_xx: unknown option type %d for option %s",
 524                                                          opt->type, opt->name);
 525                                 }
 526
 527                                 break;
 528                         }
 529                 }
 530
 531                 /* Process the option. */
 532
 533                 switch (opt->value) {
 534                 case OPT_DebugExceptions:
 535                         opt_DebugExceptions = enable;
 536                         break;
 537
 538                 case OPT_DebugLocks:
 539                         opt_DebugLocks = enable;
 540                         break;
 541
 542                 case OPT_DebugPackage:
 543                         opt_DebugPackage = enable;
 544                         break;
 545
 546                 case OPT_DebugPatcher:
 547                         opt_DebugPatcher = enable;
 548                         break;
 549
 550                 case OPT_DebugProperties:
 551                         opt_DebugProperties = enable;
 552                         break;
 553
 554                 case OPT_DebugStackFrameInfo:
 555                         opt_DebugStackFrameInfo = enable;
 556                         break;
 557
 558                 case OPT_DebugStackTrace:
 559                         opt_DebugStackTrace = enable;
 560                         break;
 561
 562                 case OPT_DebugThreads:
 563                         opt_DebugThreads = enable;
 564                         break;
 565
 566 #if defined(ENABLE_DISASSEMBLER)
 567                 case OPT_DisassembleStubs:
 568                         opt_DisassembleStubs = enable;
 569                         break;
 570 #endif
 571
 572 #if defined(ENABLE_GC_CACAO)
 573                 case OPT_GCDebugRootSet:
 574                         opt_GCDebugRootSet = enable;
 575                         break;
 576
 577                 case OPT_GCStress:
 578                         opt_GCStress = enable;
 579                         break;
 580 #endif
 581
 582                 case OPT_MaxPermSize:
 583                         /* currently ignored */
 584                         break;
 585
 586                 case OPT_PermSize:
 587                         /* currently ignored */
 588                         break;
 589
 590                 case OPT_PrintConfig:
 591                         opt_PrintConfig = enable;
 592                         break;
 593
 594                 case OPT_ProfileGCMemoryUsage:
 595                         if (value == NULL)
 596                                 opt_ProfileGCMemoryUsage = 5;
 597                         else
 598                                 opt_ProfileGCMemoryUsage = atoi(value);
 599                         break;
 600
 601                 case OPT_ProfileMemoryUsage:
 602                         if (value == NULL)
 603                                 opt_ProfileMemoryUsage = 5;
 604                         else
 605                                 opt_ProfileMemoryUsage = atoi(value);
 606
 607 # if defined(ENABLE_STATISTICS)
 608                         /* we also need statistics */
 609
 610                         opt_stat = true;
 611 # endif
 612                         break;
 613
 614                 case OPT_ProfileMemoryUsageGNUPlot:
 615                         if (value == NULL)
 616                                 filename = "profile.dat";
 617                         else
 618                                 filename = value;
 619
 620                         file = fopen(filename, "w");
 621
 622                         if (file == NULL)
 623                                 vm_abort("options_xx: fopen failed: %s", strerror(errno));
 624
 625                         opt_ProfileMemoryUsageGNUPlot = file;
 626                         break;
 627
 628 #if defined(ENABLE_REPLACEMENT)
 629                 case OPT_TestReplacement:
 630                         opt_TestReplacement = enable;
 631                         break;
 632 #endif
 633
 634                 case OPT_ThreadStackSize:
 635                         /* currently ignored */
 636                         break;
 637
 638                 case OPT_TraceCompilerCalls:
 639                         opt_TraceCompilerCalls = enable;
 640                         break;
 641
 642                 case OPT_TraceExceptions:
 643                         opt_TraceExceptions = enable;
 644                         break;
 645
 646                 case OPT_TraceJavaCalls:
 647                         opt_verbosecall = enable;
 648                         opt_TraceJavaCalls = enable;
 649                         break;
 650
 651                 case OPT_TraceJNICalls:
 652                         opt_TraceJNICalls = enable;
 653                         break;
 654
 655                 case OPT_TraceJVMCalls:
 656                         opt_TraceJVMCalls = enable;
 657                         break;
 658
 659                 case OPT_TraceLinkClass:
 660                         opt_TraceLinkClass = enable;
 661                         break;
 662
 663 #if defined(ENABLE_REPLACEMENT)
 664                 case OPT_TraceReplacement:
 665                         if (value == NULL)
 666                                 opt_TraceReplacement = 1;
 667                         else
 668                                 opt_TraceReplacement = atoi(value);
 669                         break;
 670 #endif
 671
 672                 default:
 673                         printf("Unknown -XX option: %s\n", name);
 674                         break;
 675                 }
 676         }
 677 }
 678
 679
 680 /*
 681  * These are local overrides for various environment variables in Emacs.
 682  * Please do not remove this and leave it at the end of the file, where
 683  * Emacs will automagically detect them.
 684  * ---------------------------------------------------------------------
 685  * Local variables:
 686  * mode: c
 687  * indent-tabs-mode: t
 688  * c-basic-offset: 4
 689  * tab-width: 4
 690  * End:
 691  */